CN106851840B - Method, device and system for sending key system information - Google Patents

Abstract

The present disclosure provides a method, device and system for sending key system information, belonging to the technical field of communications. The method includes: every time a first preset period is reached, the base station acquires a second part of key system information; the base station sends the second part of the key system information through a preset time-frequency resource block located in the physical downlink shared channel PDSCH. system message. By adopting the present disclosure, the terminal can obtain the second part of key system information.

Description

A method, device and system for sending key system information

technical field

The present disclosure relates to the field of communication technologies, and in particular, to a method, device and system for sending key system information.

Background technique

When the terminal is in the RRC_CONNECTED (Radio Resource Control CONNECTED) state and switches from the current cell to another cell, or when the terminal switches from the RRC_IDLE state to the RRC_CONNECTED state, the terminal needs to initiate a random access request to the base station. Before random access to a base station, key system information needs to be acquired for random access. Generally, a base station broadcasts key system information periodically.

At present, in the standard discussion of 3GPP, the key system information is divided into two parts, the first part of the key system information and the second part of the key system information, wherein the first part of the key system information includes the system frame number, system bandwidth and the number of antenna ports, etc. , and the second part of key system information includes cell access related information, public wireless resource configuration information, and the like. Generally, the base station can send key system information through PBCH (Physical Broadcast Channel), but due to the limited capacity of PBCH, it is very likely that after the first part of the key system information is put down, the second part of the key system information cannot be put down, resulting in the terminal being unable to obtain it. to the second section Critical System Information.

SUMMARY OF THE INVENTION

In order to overcome the problems existing in the related art, the present disclosure provides a method, apparatus and system for transmitting key system information. The technical solution is as follows:

According to a first aspect of the embodiments of the present disclosure, there is provided a method for sending key system information, the method comprising:

Whenever the first preset period is reached, the base station obtains the second part of key system information;

The base station sends the second part of the key system information through a preset time-frequency resource block located in the physical downlink shared channel PDSCH;

Whenever the second preset period is reached, the base station acquires the first part of key system information;

The base station sends the resource scheduling information of the first part of the key system information and the second part of the key system information through the physical broadcast channel PBCH, wherein the resource scheduling information includes time domain information of the time-frequency resource block, The time domain information is the symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the first preset period is an integer multiple of the second preset period , the scheduling information of the second part of the key system information is sent in a first preset period before the second part of the key system information is sent.

In this way, the time-frequency resource blocks can be used more flexibly.

Optionally, the resource scheduling information further includes frequency domain information of the time-frequency resource block, where the frequency domain information is a frequency range of the time-frequency resource block.

In this way, the time-frequency resource blocks can be used more flexibly.

According to a second aspect of the embodiments of the present disclosure, there is provided a method for sending key system information, the method comprising:

Whenever the first preset period is reached, the terminal receives the second part of key system information on the time-frequency resource block preset in the PDSCH;

Whenever the second preset period is reached, the terminal receives, on the PBCH, the first part of the key system information and the resource scheduling information of the second part of the key system information sent by the base station, where the resource scheduling information includes the The time domain information of the time-frequency resource block, the time domain information is the symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the first preset period is An integer multiple of the second preset period, the scheduling information of the second part of the key system information is sent one first preset period before the second part of the key system information is sent.

Optionally, whenever the first preset period is reached, the terminal receives the second part of key system information on the time-frequency resource block preset in the PDSCH, including:

Whenever the first preset period is reached, the terminal receives the second part of the key system information based on the time domain information and the pre-stored frequency domain information of the second part of the key system information, wherein the time domain The information and the time-frequency resource block corresponding to the frequency domain information are located in the PDSCH.

In this way, transmission resources can be saved.

Optionally, the resource scheduling information further includes frequency domain information of the time-frequency resource block;

The terminal receives the second part of key system information on the time-frequency resource block preset in the PDSCH whenever the first preset period is reached, including:

Whenever the first preset period is reached, the terminal receives the second part of key system information based on the time domain information and the frequency domain information included in the resource scheduling information, wherein the time domain information and the frequency domain information The time-frequency resource block corresponding to the information is located on the PDSCH.

In this way, the time-frequency resource blocks can be used more flexibly.

Optionally, the frequency domain information is the frequency range of the time-frequency resource block.

Optionally, the frequency range is a frequency range with the center frequency of the carrier as an intermediate value; or,

The frequency range is the frequency range with the center frequency of the carrier as the upper limit; or,

The frequency range is a frequency range in which the center frequency of the carrier is the lower limit value.

According to a third aspect of the embodiments of the present disclosure, a base station is provided, including:

an acquisition module for acquiring the second part of key system information whenever the first preset period is reached;

a sending module, configured to send the second part of key system information through a preset time-frequency resource block located in the physical downlink shared channel PDSCH;

The obtaining module is also used for:

Acquire the first part of key system information whenever the second preset period is reached;

The sending module is configured to send the resource scheduling information of the first part of the key system information and the second part of the key system information through the physical broadcast channel PBCH, wherein the resource scheduling information includes the time-frequency resource block. Time domain information, the time domain information is the symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the first preset period is the second preset period An integer multiple of the period, the scheduling information of the second part of the key system information is sent in a first preset period before the second part of the key system information is sent.

Optionally, the resource scheduling information further includes frequency domain information of the time-frequency resource block, where the frequency domain information is a frequency range of the time-frequency resource block.

According to a fourth aspect of the embodiments of the present disclosure, a terminal is provided, including:

a receiving module, configured to receive the second part of key system information on a preset time-frequency resource block located in the PDSCH whenever the first preset period is reached;

The receiving module is also used for:

Whenever a second preset period is reached, receive on the PBCH the first part of the key system information and the resource scheduling information of the second part of the key system information sent by the base station, where the resource scheduling information includes the time-frequency Time domain information of the resource block, the time domain information is the symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the first preset period is the first preset period An integer multiple of two preset periods, the scheduling information of the second part of the key system information is sent in a first preset period before the second part of the key system information is sent.

Optionally, the receiving module is used for:

Whenever the first preset period is reached, receive the second part of the key system information based on the time domain information and the pre-stored frequency domain information of the second part of the key system information, wherein the time domain information and the The time-frequency resource block corresponding to the frequency domain information is located in the PDSCH.

Optionally, the resource scheduling information further includes frequency domain information of the time-frequency resource block;

The receiving module is used for:

Whenever the first preset period is reached, receive a second part of key system information based on the time domain information and frequency domain information included in the resource scheduling information, wherein the time domain information and the frequency domain information correspond to Time-frequency resource blocks are located on PDSCH.

Optionally, the frequency domain information is the frequency range of the time-frequency resource block.

Optionally, the frequency range is a frequency range with the center frequency of the carrier as an intermediate value; or,

The frequency range is the frequency range with the center frequency of the carrier as the upper limit; or,

The frequency range is a frequency range in which the center frequency of the carrier is the lower limit value.

According to a fifth aspect of the embodiments of the present disclosure, a base station is provided, including:

processor;

memory for storing processor-executable instructions;

wherein the processor is configured to:

Acquire the second part of key system information whenever the first preset period is reached;

Send the second part of key system information by using a preset time-frequency resource block located in the physical downlink shared channel PDSCH;

Acquire the first part of key system information whenever the second preset period is reached;

Send the resource scheduling information of the first part of key system information and the second part of key system information through the physical broadcast channel PBCH, where the resource scheduling information includes time domain information of the time-frequency resource block, the time The domain information is the symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, the first preset period is an integer multiple of the second preset period, the The scheduling information of the second part of the key system information is sent one first preset period before the second part of the key system information is sent.

According to a sixth aspect of the embodiments of the present disclosure, a terminal is provided, including:

processor;

memory for storing processor-executable instructions;

wherein the processor is configured to:

Whenever the first preset period is reached, receive the second part of key system information on a preset time-frequency resource block located in the PDSCH;

Whenever a second preset period is reached, receive on the PBCH the first part of the key system information and the resource scheduling information of the second part of the key system information sent by the base station, where the resource scheduling information includes the time-frequency Time domain information of the resource block, the time domain information is the symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the first preset period is the first preset period An integer multiple of two preset periods, the scheduling information of the second part of the key system information is sent in a first preset period before the second part of the key system information is sent.

According to a seventh aspect of the embodiments of the present disclosure, a system for transmitting key system information is provided, the system includes a base station and a terminal, wherein:

The base station is configured to acquire the second part of the key system information whenever the first preset period is reached; send the second part of the key system information through the preset time-frequency resource block located in the physical downlink shared channel PDSCH, Whenever the second preset period is reached, obtain the first part of the key system information; send the first part of the key system information and the resource scheduling information of the second part of the key system information through the physical broadcast channel PBCH, wherein the resource The scheduling information includes time domain information of the time-frequency resource block, where the time domain information is a symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the first preset period is smaller than the first preset period. The preset period is an integer multiple of the second preset period, and the scheduling information of the second part of the key system information is sent in a first preset period before the second part of the key system information is sent;

The terminal is configured to receive the second part of key system information on the time-frequency resource block preset in the PDSCH whenever the first preset period is reached; whenever the second preset period is reached; When the period is set, the resource scheduling information of the first part of the key system information and the second part of the key system information sent by the base station is received on the PBCH.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

In the embodiment of the present disclosure, the base station acquires the second part of key system information every time the first preset period reaches the During a preset period, the second part of critical system information is received on the preset time-frequency resource block in the PDSCH. In this way, the second part of the key system information is sent on the preset time-frequency resource block in the PDSCH, and the terminal can receive the second part of the key system information on the preset time-frequency resource block, so that the terminal can obtain the second part Critical system information.

In the embodiments of the present disclosure, it should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure. In the attached image:

1 is a schematic diagram of a system for sending key system information according to an exemplary embodiment;

FIG. 2 is a flowchart of a method for sending key system information according to an exemplary embodiment;

3 is a schematic diagram of a time-frequency resource block according to an exemplary embodiment;

FIG. 4 is a schematic diagram of a time-frequency resource block according to an exemplary embodiment;

FIG. 5 is a schematic structural diagram of a base station according to an exemplary embodiment;

6 is a schematic structural diagram of a terminal according to an exemplary embodiment;

FIG. 7 is a schematic structural diagram of a base station according to an exemplary embodiment;

FIG. 8 is a schematic structural diagram of a terminal according to an exemplary embodiment.

The above-mentioned drawings have shown clear embodiments of the present disclosure, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

An embodiment of the present disclosure provides a method for sending key system information. As shown in FIG. 1 , the method can be jointly implemented by a terminal and a base station. Among them, the terminal is a mobile phone, etc., and the terminal is provided with a processor, a transceiver and a memory, etc., the processor can be used to perform processing related to sending key system information, the transceiver can be used to receive and send data, and the memory can be used to store and send data. The data received and possibly generated during the critical system information process. The base station is provided with a processor, a transceiver, and a memory. The processor can be used to perform processing related to sending key system information. The transceiver can be used to receive and send data. data and possible data.

As shown in Figure 2, the processing flow of the method may include the following steps:

In step 201, each time the first preset period is reached, the base station acquires the second part of key system information.

The first preset period may be set by a technician and stored in the base station, such as 80ms. The second part of key system information includes cell access related information, public wireless resource configuration information, and the like.

In the implementation, the base station may continuously detect whether the first preset period is reached, and every time the first preset period is reached, the current second part of key system information may be acquired. For example, the first preset period is 80ms, and the base station may acquire the current second part of key system information every 80ms.

In step 202, the base station sends the second part of key system information through a preset time-frequency resource block located in the PDSCH.

In implementation, the base station may map the second part of the key system information to a preset time-frequency resource block in the PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel), and then use the beam scanning method to send the second part of the key system information . For example, as shown in FIG. 3, in one RB (Resource Block, resource block), the PDSCH occupies the last five symbols, and the technician can set the time-frequency resource block of the last two symbols in one RB to the preset time frequency resource block, the base station may send the second part of the key system information to the terminal through the time-frequency resource block of the last two symbols in an RB.

It should be noted that the preset time-frequency resource blocks in the PDSCH belong to subframes determined in the preset radio frame. The time-frequency resource block preset in the PDSCH can be used by the base station to transmit data to the terminal when the second part of the key system information is not sent.

In step 203, whenever the first preset period is reached, the terminal receives the second part of key system information on the preset time-frequency resource block located in the PDSCH.

In implementation, after the terminal is powered on, it can detect the primary synchronization signal and the secondary synchronization signal, obtain accurate time-frequency synchronization with the cell, and then perform channel demodulation on the preset time-frequency resource block located in the PDSCH, and receive the second part of the key For system information, when the second part of key system information is subsequently received, whenever the first preset period is reached, channel demodulation may be performed on the preset time-frequency resource block located in the PDSCH to receive the second part of key system information. For example, the technician stores the symbol identifier and frequency range of the preset time-frequency resource block in the PDSCH in the base station and the terminal in advance, and the terminal can receive the first time-frequency resource block on the time-frequency resource block corresponding to the symbol identifier and frequency range of the time-frequency resource block. Two parts of key system information.

Optionally, the embodiment of the present disclosure also provides a method for the base station to send the resource scheduling information of the first part of the key system information and the second part of the key system information to the terminal, and the corresponding processing may be as follows:

Whenever the second preset period is reached, the base station acquires the first part of the key system information, where the second preset period is less than the first preset period; the base station sends the first part of the key system information and the second part of the key system information through the physical broadcast channel PBCH The resource scheduling information of the system information, wherein the resource scheduling information includes time domain information of the time-frequency resource block, and the time domain information is the symbol identification of the time-frequency resource block.

Among them, the first part of the key system information includes the system frame number, the system bandwidth and the number of antenna ports. The second preset period can be set by a technician and stored in the base station. Generally, the second preset period is smaller than the first preset period, for example, the second preset period is 40ms, and the first preset period is 80ms. The resource scheduling information may include time domain information of a preset time-frequency resource block, so that the terminal can receive the second part of key system information from the time-frequency resource block corresponding to the time-domain information.

In implementation, the base station may determine the first part of the key system information every second preset period, then map the first part of the key system information to the PBCH, and obtain the resource scheduling information of the second part of the key system information to be sent, and use the The resource scheduling information is also mapped on the PBCH, and then the resource scheduling information of the first part of the key system information and the second part of the key system information is sent through the PBCH based on beam scanning. For example, the first preset period is 80ms, the second preset period is 40ms, the first part of the key system information may be sent only once in the second preset period, or it may be sent repeatedly (for example, the first part of the key system information is sent every 10ms) system information), it is also possible to send multiple times, the sum of the information sent multiple times is the first part of the key system information (the information is sent every 10ms, a total of four times, the sum of the four times is the first part of the key system information), for the first part In the case where the key system information is repeatedly sent multiple times, the resource scheduling information of the second part of the key system information can be sent in any one time. The resource scheduling information of the system information can be sent in the last transmission.

It should be noted that if the second preset period is an integer multiple of the first preset period, the scheduling information of the second part of the key system information does not need to be sent every first preset period, and can be sent when the second part of the key system information is sent. The system information is sent one first preset period before. For example, the first preset period is 80ms, and the second preset period is 40ms. If the start time point of sending the first part of the key system information and the second part of the key system information for the first time is the same, the base station can The resource scheduling information of the second part of the key system information in the first first preset period is sent within the preset period.

Optionally, the terminal may receive the first part of the key system information and the resource scheduling information of the second part of the key system information, and the corresponding processing may be as follows:

Whenever the second preset period is reached, the terminal receives, on the PBCH, the resource scheduling information of the first part of the key system information and the second part of the key system information sent by the base station, where the resource scheduling information includes time domain information of time-frequency resource blocks.

In implementation, after the terminal is powered on, it can detect the primary synchronization signal and the secondary synchronization signal, obtain accurate time-frequency synchronization with the cell, and then receive the first part of the key system information and the second part of the key system information resources sent by the base station on the PBCH Scheduling information, when subsequently receiving the resource scheduling information of the first part of the key system information and the second part of the key system information, the first part of the key system information and the second part of the key system information can be received on the PBCH every second preset period resource scheduling information.

Optionally, the terminal may also receive the second part of key system information based on the time domain information and pre-stored frequency domain information in the resource scheduling information, and the corresponding processing of step 203 may be as follows:

Whenever the first preset period is reached, the terminal receives the second part of the key system information based on the time domain information and the pre-stored frequency domain information of the second part of the key system information, wherein the time domain information and the frequency domain information correspond to the time domain information. The frequency resource blocks are located on PDSCH.

The frequency domain information of the second part of the key system information can be set by a technician and stored in the base station, for example, the frequency domain information is the frequency range of the time-frequency resource block. The time domain information corresponding to the second part of the key system information and the time-frequency resource blocks corresponding to the frequency domain information are in the PDSCH.

In implementation, after obtaining the resource scheduling information of the second part of the key system information, the terminal can obtain the time domain information of the preset time-frequency resource blocks included therein, and then obtain the pre-stored second part of the key system information. Frequency domain information. Whenever the first preset period is reached, the terminal can find the current time domain information and the time-frequency resource block corresponding to the frequency domain information, and then demodulate the second part of the key system information from the time-frequency resource block. .

It should be noted that, in each first preset period, the base station will send the resource scheduling information of the second part of the key system information, and each time it receives the second part of the key system information, For resource scheduling information, a corresponding time-frequency resource block is found based on the time-domain information and pre-stored frequency-domain information therein, and the second part of the key system information is demodulated from the time-frequency resource block.

Optionally, the resource scheduling information of the second part of the key system information further includes the preset frequency domain information of the time-frequency resource block, and the corresponding processing of step 203 may be as follows:

Whenever the first preset period is reached, the terminal receives the second part of the key system information based on the time domain information and the frequency domain information included in the resource scheduling information, where the time-frequency resource blocks corresponding to the time domain information and the frequency domain information are located in the PDSCH.

In the implementation, the resource scheduling information of the second part of the key system information also includes the frequency domain information of the preset time-frequency resource blocks, so that the terminal can obtain the resource scheduling information of the second part of the key system information when receiving the Time domain information and frequency domain information to the second part of key system information. Whenever the first preset period is reached, the terminal can find the corresponding time-frequency resource block according to the time-domain information and frequency-domain information in the resource scheduling information, and then demodulate the second part of the key system from the time-frequency resource block. information.

It should be noted that, in each first preset period, the base station will send the resource scheduling information of the second part of the key system information, and each time it receives the second part of the key system information, In the resource scheduling information, based on the time-domain information and frequency-domain information therein, a corresponding time-frequency resource block is found, and the second part of the key system information is demodulated from the time-frequency resource block.

Optionally, the time-domain information is a symbol identifier of the time-frequency resource block, and the frequency-domain information is a frequency range of the time-frequency resource block.

In implementation, the time domain information may be a symbol identifier of a time-frequency resource block, and the terminal can use the symbol identifier to determine the corresponding time-frequency resource block. For example, as shown in FIG. 4 , one RB includes seven RBs in the time domain. OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbol, including 12 subcarriers in the frequency domain as an example, the symbol identifier of the time-frequency resource block is l=5, 6, indicating that the OFDM symbol is the last two columns in an RB frequency resource block.

The frequency domain information is the frequency range of the time-frequency resource block. For example, the preset frequency range of the time-frequency resource block in the PDSCH is 1.5MHz to 2MHz. The frequency range can be one or more, such as 1.5MHz～ 1.7MHz and 2MHz～2.1MHz.

Optionally, when the frequency domain information mentioned above is the frequency domain range, the frequency domain information can be divided into the following three types:

First, the frequency range with the center frequency of the carrier as the intermediate value.

In the implementation, the center frequency of the carrier is pre-stored in the terminal and the base station, and the frequency domain information of the second part of the key system information is the frequency range with the center frequency of the carrier as the intermediate value. For example, the center frequency of the carrier is 5MHz, and the frequency range is 2MHz to 8MHz, and the second part of the key system information can be mapped on time-frequency resource blocks with a frequency range of 2MHz to 8MHz.

Second, the frequency range with the center frequency of the carrier as the upper limit.

In the implementation, the center frequency of the carrier is pre-stored in the terminal and the base station. The frequency domain information of the second part of the key system information is the frequency range with the center frequency of the carrier as the upper limit. For example, the center frequency of the carrier is 5MHz, and the frequency The range is 2MHz to 5MHz, and the second part of the key system information can be mapped on time-frequency resource blocks with a frequency range of 2MHz to 5MHz.

Third, the frequency range with the center frequency of the carrier as the lower limit value.

In the implementation, the center frequency of the carrier is pre-stored in the terminal and the base station, and the frequency domain information of the second part of the key system information is the frequency range with the center frequency of the carrier as the lower limit. For example, the center frequency of the carrier is 5MHz, and the frequency The range is 5MHz to 8MHz, and the second part of the key system information can be mapped on time-frequency resource blocks with a frequency range of 5MHz to 8MHz.

It should be noted that when the above-mentioned frequency domain information is the frequency range of the time-frequency resource block, if the frequency range includes the frequency of the frequency band where the DC (Direct Current) subcarrier is located, since the DC subcarrier cannot be used It is used for mapping data, so the DC sub-carrier cannot be used for mapping the second part of key system information.

In the embodiment of the present disclosure, the base station acquires the second part of key system information every time the first preset period reaches the During a preset period, the second part of critical system information is received on the preset time-frequency resource block in the PDSCH. In this way, the second part of the key system information is sent on the preset time-frequency resource block in the PDSCH, and the terminal can receive the second part of the key system information on the preset time-frequency resource block, so that the terminal can obtain the second part Critical system information.

Based on the same technical concept, an exemplary embodiment of the present disclosure further provides a base station, as shown in FIG. 5 , the base station includes:

an acquisition module 510, configured to acquire the second part of key system information whenever the first preset period is reached;

The sending module 520 is configured to send the second part of the key system information through a preset time-frequency resource block located in the physical downlink shared channel PDSCH.

Optionally, the obtaining module 510 is further configured to:

Acquire a first part of key system information whenever a second preset period is reached, wherein the second preset period is smaller than the first preset period;

The sending module 520 is configured to send the resource scheduling information of the first part of key system information and the second part of key system information through a physical broadcast channel PBCH, where the resource scheduling information includes the time-frequency resource block time domain information, where the time domain information is the symbol identifier of the time-frequency resource block.

Optionally, the resource scheduling information further includes frequency domain information of the time-frequency resource block, where the frequency domain information is a frequency range of the time-frequency resource block.

In the embodiment of the present disclosure, the base station acquires the second part of key system information every time the first preset period reaches the During a preset period, the second part of critical system information is received on the preset time-frequency resource block in the PDSCH. In this way, the second part of the key system information is sent on the preset time-frequency resource block in the PDSCH, and the terminal can receive the second part of the key system information on the preset time-frequency resource block, so that the terminal can obtain the second part Critical system information.

It should be noted that: when the base station provided in the above embodiment sends key system information, only the division of the above functional modules is used for illustration. In practical applications, the above functions can be allocated to different functional modules as required. The internal structure of the base station is divided into different functional modules to complete all or part of the functions described above. In addition, the base station provided in the above embodiment and the method embodiment for sending key system information belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment, which will not be repeated here.

Based on the same technical concept, an exemplary embodiment of the present disclosure further provides a terminal, as shown in FIG. 6 , the terminal includes:

The receiving module 610 is configured to receive the second part of key system information on a preset time-frequency resource block located in the PDSCH whenever the first preset period is reached.

Optionally, the receiving module 610 is further configured to:

Whenever a second preset period is reached, receive on the PBCH the first part of the key system information and the resource scheduling information of the second part of the key system information sent by the base station, where the resource scheduling information includes the time-frequency Time domain information of resource blocks.

Optionally, the receiving module 610 is used for:

Whenever the first preset period is reached, receive the second part of the key system information based on the time domain information and the pre-stored frequency domain information of the second part of the key system information, wherein the time domain information and the The time-frequency resource block corresponding to the frequency domain information is located in the PDSCH.

Optionally, the resource scheduling information further includes frequency domain information of the time-frequency resource block;

The receiving module 610 is used for:

Whenever the first preset period is reached, receive a second part of key system information based on the time domain information and frequency domain information included in the resource scheduling information, wherein the time domain information and the frequency domain information correspond to Time-frequency resource blocks are located on PDSCH.

Optionally, the time-domain information is a symbol identifier of the time-frequency resource block, and the frequency-domain information is a frequency range of the time-frequency resource block.

Optionally, the frequency range is a frequency range with the center frequency of the carrier as an intermediate value; or,

The frequency range is the frequency range with the center frequency of the carrier as the upper limit; or,

The frequency range is a frequency range in which the center frequency of the carrier is the lower limit value.

In the embodiment of the present disclosure, the base station acquires the second part of key system information every time the first preset period reaches the During a preset period, the second part of critical system information is received on the preset time-frequency resource block in the PDSCH. In this way, the second part of the key system information is sent on the preset time-frequency resource block in the PDSCH, and the terminal can receive the second part of the key system information on the preset time-frequency resource block, so that the terminal can obtain the second part Critical system information.

It should be noted that: when the terminal provided in the above embodiment sends key system information, only the division of the above functional modules is used as an example. The internal structure of the terminal is divided into different functional modules to complete all or part of the functions described above. In addition, the terminal provided in the above embodiment and the method embodiment for sending key system information belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment, which will not be repeated here.

Yet another exemplary embodiment of the present disclosure provides a schematic structural diagram of a base station. 7, base station 700 includes processing component 1922, which further includes one or more processors, and a memory resource represented by memory 1932 for storing instructions executable by processing component 1922, such as application programs. An application program stored in memory 1932 may include one or more modules, each corresponding to a set of instructions. Additionally, the processing component 1922 is configured to execute instructions to perform the above-described method of displaying usage records.

The base station 700 may also include a power supply assembly 1926 configured to perform power management of the base station 700, a wired or wireless network interface 1950 configured to connect the base station 700 to a network, and an input output (I/O) interface 1958. Base station 700 may operate based on an operating system stored in memory 1932, such as Windows Server™, Mac OSX™, Unix™, Linux™, FreeBSD™ or the like.

The base station 700 may include a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by one or more processors, including a program for performing the following operations: instruction:

Whenever the first preset period is reached, the base station obtains the second part of key system information;

The base station sends the second part of the key system information through a preset time-frequency resource block located in the physical downlink shared channel PDSCH.

Optionally, the method further includes:

Whenever a second preset period is reached, the base station acquires the first part of key system information, wherein the second preset period is smaller than the first preset period;

The base station sends the resource scheduling information of the first part of the key system information and the second part of the key system information through the physical broadcast channel PBCH, wherein the resource scheduling information includes time domain information of the time-frequency resource block, The time domain information is the symbol identification of the time-frequency resource block.

Optionally, the resource scheduling information further includes frequency domain information of the time-frequency resource block, where the frequency domain information is a frequency range of the time-frequency resource block.

In the embodiment of the present disclosure, the base station acquires the second part of key system information every time the first preset period reaches the During a preset period, the second part of critical system information is received on the preset time-frequency resource block in the PDSCH. In this way, the second part of the key system information is sent on the preset time-frequency resource block in the PDSCH, and the terminal can receive the second part of the key system information on the preset time-frequency resource block, so that the terminal can obtain the second part Critical system information.

Another exemplary embodiment of the present disclosure provides a schematic structural diagram of a terminal. The terminal may be a mobile phone or the like.

8, the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, And communication assembly 816 , travel member 818 .

The processing component 802 generally controls the overall operations of the terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing element 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

Memory 804 is configured to store various types of data to support operations at terminal 800 . Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phonebook data, messages, pictures, videos, and the like. Memory 804 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

Power component 806 provides power to various components of terminal 800 . Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to audio output device 800 .

The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 808 includes a front-facing camera and/or a rear-facing camera. When the terminal 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.

Audio component 810 is configured to output and/or input audio signals. For example, audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when audio output device 800 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 804 or transmitted via communication component 816 .

The I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

Sensor assembly 814 includes one or more sensors for providing various aspects of the status assessment of terminal 800 . For example, the sensor component 814 can detect the open/closed state of the terminal 800, the relative positioning of components, such as the display and the keypad of the terminal 800, the sensor component 814 can also detect the position change of the terminal 800 or a component of the terminal 800 , the presence or absence of user contact with the terminal 800 , the orientation or acceleration/deceleration of the terminal 800 and the temperature change of the terminal 800 . Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 816 is configured to facilitate wired or wireless communication between terminal 800 and other devices. Terminal 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

The travel member 818 is used for the terminal to travel, such as a wheel or the like.

In an exemplary embodiment, terminal 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as a memory 804 including instructions, which are executable by the processor 820 of the terminal 800 to perform the above method. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor of a terminal, the terminal can execute the above method, the method comprising:

Whenever the first preset period is reached, the terminal receives the second part of key system information on the preset time-frequency resource block located in the PDSCH.

Optionally, the method further includes:

Whenever the second preset period is reached, the terminal receives, on the PBCH, the first part of the key system information and the resource scheduling information of the second part of the key system information sent by the base station, where the resource scheduling information includes the Time domain information of the time-frequency resource block.

Optionally, whenever the first preset period is reached, the terminal receives the second part of key system information on the time-frequency resource block preset in the PDSCH, including:

Whenever the first preset period is reached, the terminal receives the second part of the key system information based on the time domain information and the pre-stored frequency domain information of the second part of the key system information, wherein the time domain The information and the time-frequency resource block corresponding to the frequency domain information are located in the PDSCH.

Optionally, the resource scheduling information further includes frequency domain information of the time-frequency resource block;

The terminal receives the second part of key system information on the time-frequency resource block preset in the PDSCH whenever the first preset period is reached, including:

Whenever the first preset period is reached, the terminal receives the second part of key system information based on the time domain information and the frequency domain information included in the resource scheduling information, wherein the time domain information and the frequency domain information The time-frequency resource block corresponding to the information is located on the PDSCH.

Optionally, the time-domain information is a symbol identifier of the time-frequency resource block, and the frequency-domain information is a frequency range of the time-frequency resource block.

Optionally, the frequency range is a frequency range with the center frequency of the carrier as an intermediate value; or,

The frequency range is the frequency range with the center frequency of the carrier as the upper limit; or,

The frequency range is a frequency range in which the center frequency of the carrier is the lower limit value.

In the embodiment of the present disclosure, the base station acquires the second part of key system information every time the first preset period reaches the During a preset period, the second part of critical system information is received on the preset time-frequency resource block in the PDSCH. In this way, the second part of the key system information is sent on the preset time-frequency resource block in the PDSCH, and the terminal can receive the second part of the key system information on the preset time-frequency resource block, so that the terminal can obtain the second part Critical system information.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or techniques in the technical field not disclosed by the present disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (17)

1. a method for sending key system information, characterized in that the method comprises: Whenever the first preset period is reached, the base station acquires the second part of the key system information, and sends the second part of the key system information through the preset time-frequency resource block located in the PDSCH of the physical downlink shared channel, and the second part of the key system information is sent. Some key system information includes information about cell access; Whenever the second preset period is reached, the base station acquires the first part of the key system information and sends the first part of the key system information and the resource scheduling information associated with the second part of the key system information through the physical broadcast channel PBCH , wherein the resource scheduling information includes time domain information of the time-frequency resource block, the time domain information is a symbol identifier of the time-frequency resource block, and the second preset period is smaller than the first preset period Period, the first preset period is an integer multiple of the second preset period, and the scheduling information of the second part of the critical system information is a first preset period before sending the second part of the critical system information send. 2 . The method according to claim 1 , wherein the resource scheduling information further comprises frequency domain information of the time-frequency resource block, and the frequency domain information is a frequency range of the time-frequency resource block. 3 . 3. A method for sending key system information, wherein the method comprises: Whenever the first preset period is reached, the terminal receives the second part of the key system information on the time-frequency resource block preset in the PDSCH, where the second part of the key system information includes cell access related information; Whenever the second preset period is reached, the terminal receives, on the PBCH, the first part of the key system information sent by the base station and the resource scheduling information associated with the second part of the key system information, where the resource scheduling information includes Time domain information of the time-frequency resource block, where the time domain information is a symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, the first preset period is an integer multiple of the second preset period, and the scheduling information of the second part of the key system information is sent a first preset period before the second part of the key system information is sent. 4. The method according to claim 3, wherein each time the first preset period is reached, the terminal receives the second part of key system information on a preset time-frequency resource block located in the PDSCH, comprising: Whenever the first preset period is reached, the terminal receives the second part of the key system information based on the time domain information and the pre-stored frequency domain information of the second part of the key system information, wherein the time domain The information and the time-frequency resource block corresponding to the frequency domain information are located in the PDSCH. 5. The method according to claim 3, wherein the resource scheduling information further comprises frequency domain information of the time-frequency resource block; The terminal receives the second part of key system information on the time-frequency resource block preset in the PDSCH whenever the first preset period is reached, including: Whenever the first preset period is reached, the terminal receives the second part of key system information based on the time domain information and the frequency domain information included in the resource scheduling information, wherein the time domain information and the frequency domain information The time-frequency resource block corresponding to the information is located on the PDSCH. The method according to claim 4 or 5, wherein the frequency domain information is a frequency range of the time-frequency resource block. 7. The method according to claim 6, wherein the frequency range is a frequency range in which the center frequency of the carrier is an intermediate value; or, The frequency range is the frequency range with the center frequency of the carrier as the upper limit; or, The frequency range is a frequency range in which the center frequency of the carrier is the lower limit value. 8. A base station, wherein the base station comprises: an acquisition module, configured to acquire a second part of key system information whenever the first preset period is reached, where the second part of key system information includes information related to cell access; a sending module, configured to send the second part of key system information through a preset time-frequency resource block located in the physical downlink shared channel PDSCH whenever the first preset period is reached; The obtaining module is also used for: Acquire the first part of key system information whenever the second preset period is reached; The sending module is configured to send the first part of the key system information and the resource scheduling information associated with the second part of the key system information through the physical broadcast channel PBCH whenever the first preset period is reached, wherein, The resource scheduling information includes time domain information of the time-frequency resource block, the time domain information is a symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the The first preset period is an integer multiple of the second preset period, and the scheduling information of the second part of the key system information is sent a first preset period before the second part of the key system information is sent. 9 . The base station according to claim 8 , wherein the resource scheduling information further comprises frequency domain information of the time-frequency resource block, and the frequency domain information is a frequency range of the time-frequency resource block. 10 . 10. A terminal, wherein the terminal comprises: A receiving module, configured to receive a second part of key system information on a preset time-frequency resource block located in the PDSCH whenever the first preset period is reached, where the second part of key system information includes cell access related information ; The receiving module is also used for: Whenever a second preset period is reached, the first part of the key system information sent by the base station and the resource scheduling information associated with the second part of the key system information are received on the PBCH, wherein the resource scheduling information includes the time time domain information of the frequency resource block, the time domain information is the symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the first preset period is the An integer multiple of the second preset period, the scheduling information of the second part of the key system information is sent one first preset period before the second part of the key system information is sent. 11. The terminal according to claim 10, wherein the receiving module is configured to: Whenever the first preset period is reached, receive the second part of the key system information based on the time domain information and the pre-stored frequency domain information of the second part of the key system information, wherein the time domain information and the The time-frequency resource block corresponding to the frequency domain information is located in the PDSCH. The terminal according to claim 10, wherein the resource scheduling information further comprises frequency domain information of the time-frequency resource block; The receiving module is used for: Whenever the first preset period is reached, receive a second part of key system information based on the time domain information and frequency domain information included in the resource scheduling information, wherein the time domain information and the frequency domain information correspond to Time-frequency resource blocks are located on PDSCH. The terminal according to claim 11 or 12, wherein the frequency domain information is a frequency range of the time-frequency resource block. 14. The terminal according to claim 13, wherein the frequency range is a frequency range with the center frequency of the carrier as an intermediate value; or, The frequency range is the frequency range with the center frequency of the carrier as the upper limit; or, The frequency range is a frequency range in which the center frequency of the carrier is the lower limit value. 15. A base station, wherein the base station comprises: processor; memory for storing processor-executable instructions; wherein the processor is configured to: Whenever the first preset period is reached, the second part of the key system information is acquired, and the second part of the key system information is sent through the preset time-frequency resource block located in the PDSCH of the physical downlink shared channel. Key system information includes information about cell access; Whenever the second preset period is reached, the first part of the key system information is acquired, and the first part of the key system information and the resource scheduling information associated with the second part of the key system information are sent through the physical broadcast channel PBCH, wherein , the resource scheduling information includes time domain information of the time-frequency resource block, the time domain information is a symbol identifier of the time-frequency resource block, and the second preset period is smaller than the first preset period, The first preset period is an integer multiple of the second preset period, and the scheduling information of the second part of the key system information is sent a first preset period before the second part of the key system information is sent. 16. A terminal, wherein the terminal comprises: processor; memory for storing processor-executable instructions; wherein the processor is configured to: Whenever the first preset period is reached, receive a second part of key system information on a preset time-frequency resource block located in the PDSCH, where the second part of key system information includes cell access related information; Whenever a second preset period is reached, the first part of the key system information sent by the base station and the resource scheduling information associated with the second part of the key system information are received on the PBCH, wherein the resource scheduling information includes the time time domain information of the frequency resource block, the time domain information is the symbol identifier of the time-frequency resource block, the second preset period is smaller than the first preset period, and the first preset period is the An integer multiple of the second preset period, the scheduling information of the second part of the key system information is sent one first preset period before the second part of the key system information is sent. 17. A system for transmitting key system information, wherein the system comprises a base station and a terminal, wherein: The base station is configured to acquire the second part of the key system information every time the first preset period is reached, and send the second part of the key system information through a preset time-frequency resource block located in the physical downlink shared channel PDSCH , the second part of the key system information includes information related to cell access; whenever the second preset period is reached, the first part of the key system information is acquired, and the first part of the key system information and Resource scheduling information associated with the second part of the key system information, wherein the resource scheduling information includes time-domain information of the time-frequency resource block, and the time-domain information is a symbol identifier of the time-frequency resource block , the second preset period is smaller than the first preset period, the first preset period is an integer multiple of the second preset period, and the scheduling information of the second part of the key system information is sent A first preset period before the second part of the key system information is sent; The terminal is configured to receive the second part of key system information on the time-frequency resource block preset in the PDSCH whenever the first preset period is reached; whenever the second preset period is reached; When the period is set, the first part of the key system information sent by the base station and the resource scheduling information associated with the second part of the key system information are received on the PBCH.

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